Finding the Third Proportional to 9,786.94 and 21,153.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.94 : 21,153.38 = 21,153.38 : x
2. Step 2: Convert to fraction form
   9,786.94/21,153.38 = 21,153.38/x
3. Step 3: Cross multiply
   9,786.94x = 21,153.38 × 21,153.38
4. Step 4: Simplify right side
   9,786.94x = 447,465,273.89
5. Step 5: Solve for x
   x = 447,465,273.89/9,786.94
6. Step 6: Final answer
   x = 45,720.66